QR code game/experience, sorta like geocaching?
I have an idea for leaving random semi permanent but portable QR codes (maybe 3d printed or wood cuts) in places. Some would lead to a discussion board just for that code, so it would be kinda like "Where's George" (US dollar bill tracking system). Others might just be a link to a poem.
Does a community/project like this already exist? Munzee but I'm unsure if you were being ironic.